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Finding the Third Proportional to 511,780.50 and 757,687.50

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Solution

The third proportional to 511,780.50 and 757,687.50 is: 1,121,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,780.50 : 757,687.50 = 757,687.50 : x
  2. Step 2: Convert to fraction form
    511,780.50/757,687.50 = 757,687.50/x
  3. Step 3: Cross multiply
    511,780.50x = 757,687.50 × 757,687.50
  4. Step 4: Simplify right side
    511,780.50x = 574,090,347,656.25
  5. Step 5: Solve for x
    x = 574,090,347,656.25/511,780.50
  6. Step 6: Final answer
    x = 1,121,751.12

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.